import redis.clients.jedis.Jedis;

import java.util.Random;
/*
    实例：手机验证码
    每个手机每天只能发3次，验证码发到redis中，设置过期时间
*/
public class PhoneCode {
    public static void main(String[] args) {
        //verifyCode("18733196332");
        //getRedisCode("18733196332","923376");
    }
    //验证码校验
    public static void getRedisCode(String phone,String code){
        Jedis jedis=new Jedis("192.168.80.7",6379);
        String codeKey="VerifyCode"+phone+":code";
        String redisCode=jedis.get(codeKey);
        System.out.println(redisCode);
        //判断
        if(redisCode.equals(code)){
            System.out.println("成功");
        }else {
            System.out.println("失败");
        }
    }
    //每个手机每天只能发3次，验证码发到redis中，设置过期时间
    public static void verifyCode(String phone){
        //连接
        Jedis jedis=new Jedis("192.168.80.7",6379);
        //拼接key
        //手机发送次数key
        String countKey="VerifyCode"+phone+":count";
        //验证码key
        String codeKey="VerifyCode"+phone+":code";
        //每个手机只能发送三次
        String count=jedis.get(countKey);
        if(count==null)
        {
            //没有发送次数，第一次发送
            //设置发送次数是一
            jedis.setex(countKey,24*60*60,"1");
        }else if (Integer.parseInt(count)<=2){
            //发送次数加一
            jedis.incr(codeKey);
        }else if (Integer.parseInt(count)>2){
            //发送次数超过3次
            System.out.println("发送次数已经超过三次");
            jedis.close();
            return;
        }
        //发送验证码到redis中
        String vcode=getCode();
        jedis.setex(codeKey,120,vcode);
        jedis.close();
    }

    //生成六位验证码
    public static String getCode(){
        Random random=new Random();
        String code="";
        for (int i = 0; i < 6; i++) {
            int i1 = random.nextInt(10);
            code+=i1;
        }
        return  code;
    }
}
